中文摘要：

采用有限元法模拟微结构光纤表面等离子体共振传感器.计算其共振波长和强度,为证实表面等离子体共振的产生,对比不同位置处传导模的分布.环形大孔中液体样品的折射率提高后,共振波长向长波移动,且共振峰值强度增大.该微结构光纤表面等离子体传感器对折射率变化的灵敏度达到10-4.

英文摘要：

Microstructured-optical-fiber(MOF)surface-plasmon-resonance(SPR)sensor was theoretically investigated via finite element method.The resonance wavelength and SPR amplitude were calculated.The comparation of field mode distribution at different wavelengths confirmed the occurrence of SPR.As the refractive index of the liquid measured in large ring holes increases,the SPR peak increases and shifts to long wavelength.This MOF-SPR senor has a ～10-4 sensitivity as the refractive index changes.